A groundbreaking photographic field guide to almost all of Mexico's butterfly species and many of Central America's This is a revised second edition of a ground

A thoroughly revised edition of the most comprehensive and authoritative photographic field guide to North American butterflies This is a revised second edition

"Approved by the North American Butterfly Association"--Cover.

This is a revised second edition of the most detailed, comprehensive, and user-friendly photographic field guide to the butterflies of North America. Written by